To stop puppy biting, you need two things at once: fewer situations that make your puppy bite, and a better outlet for their mouth when it happens. Most biting comes from play, teething, overtiredness or overexcitement. Deal with those, and redirect calmly, and biting fades.

Punishment does not help. The ASPCA warns that slapping or hitting puppies for playful mouthing can cause them to bite harder.

Why puppies bite

  • Play. Puppies play with their mouths. With littermates, a hard bite ends the game. With people, it often starts one.
  • Teething. Chewing relieves discomfort.
  • Overtiredness. The biggest one. A puppy who needs a nap often becomes a land shark.
  • Frustration. Wanting something they cannot have, or being held when they want to go.
  • Attention. If biting always gets a reaction, biting works.

Look at when biting happens. Evening, after visitors, when you pick them up? The pattern tells you which fix to use.

7 calm redirects

1. Put a toy between you and the teeth

Keep a tug toy or a soft toy within reach at all times. When your puppy mouths you, offer the toy and make it fun. The ASPCA recommends substituting a toy or chew bone when your puppy tries to gnaw on fingers or toes.

2. Stop the game, calmly

If teeth touch skin during play, go still, let your hand go limp, and step away for a few seconds. The ASPCA describes walking away as a time-out. The lesson: teeth on people end the fun. Then come back and play again, gently.

3. Do not pull your hands away fast

Jerking your hands away looks like prey to a puppy and invites a chase. Keep hands still, then move them slowly out of reach.

4. Choose games with space between you

The ASPCA recommends noncontact games such as fetch and tug instead of wrestling and rough play. Play with toys, not with hands and feet.

5. Put an overtired puppy to bed

If biting gets wilder instead of calmer, your puppy probably needs sleep. Toilet trip, then into the crate or pen with a chew. This is not punishment. It is a nap they needed. Our puppy training schedule builds naps into the day.

6. Give the mouth a job

Offer safe chews and food toys at the times biting usually happens. A stuffed food toy in the evening, a chew during your dinner. Rotate them so they stay interesting. Our dog enrichment ideas have more options.

7. Reward calm mouths

Notice the moments your puppy is lying quietly or chewing their toy, and reward them. Calm gets attention too, not only chaos. Puppy training tips has more on rewarding calm.

The evening crazies

Many puppies have a wild spell in the evening: zooming, biting ankles, grabbing sleeves. It often comes from being overtired, overexcited or under-occupied.

  • Plan a short sniff in the yard or a food toy before the usual time.
  • Keep the house calm in that hour. Fewer visitors, less rough play.
  • If it starts anyway, stay calm, offer a toy, and if that fails, a quiet rest in the pen with a chew.

Children and biting

Children move fast and squeal, which excites puppies. Supervise every interaction. Teach children to “be a tree”: stand still, fold their arms, look away and call an adult. Never leave young children and a puppy together unsupervised.

Common mistakes

Physical punishment. Nose taps, holding the mouth shut and scruff shakes can increase biting and damage trust.

Hand play. Wrestling with hands teaches that hands are toys.

Pushing through overtiredness. No amount of redirecting works on a puppy who needs to sleep. The first-week training plan shows how rest fits into the first days.

Mixed rules. If one person allows mouthing and another does not, the puppy keeps trying.

When to ask a professional

The ASPCA advises contacting a professional if biting looks fear-based or frustrated rather than playful. Signs include freezing, stiffening, hard staring, lip curling, or biting when touched, handled, or approached near food or toys. Look for a certified applied animal behaviorist, a veterinary behaviorist or a certified behavior consultant. Start early. It is much easier than later.

Sources

Guidance checked on September 27, 2026: